Beater engine



c. E. GREENE. BEATER ENGINE APPLICATION FILED MAR- 51 192! 1 24,399.Patented Aug. 1 1922,

VII.

a NWM'WW Uh les E. ree rm,

n lrti latii when CHARLES E. GREENE, OF BANGOR, ELAINE.

BEATER ENGINE.

Specification of Letters Patent. Patented Aug. 1, 192 2.,

Application filed March 5, 1921. Serial No. 449,960.

To all whom, it may concern.

Be it lrnown tl'iat I, CHARLES E. GFRIGISNE, a citizen of the UnitedStates, residinn at Bangor, county of Penobscot, and Stateof Maine, haveinvented. certain new and use-.

. bed plates are subjected to tremendous presssure as the stock isworked 'thereover by the revolving beater knives, and this pressure notonly tends to wear down the usual wooden fastenersfor the bed plate butto wear down the bed plateitself. This develops inequalitiesin thesurfaces of the fasteners and the bed plate so that said surfaces lie indifferent planes relative to each other. lVhen this conditionarises, itis the practice to plane off the exposed surfaces of the woodenfasteners in order to again bring said surfaces and the surface of thebeater plate itself in the same plane. Aside from the inconvenience andloss of time which this involves, the wear produced by the stock being;worked over the wooden fasteners rapidly causes the wood of thefasteners to become black. This is a serious defect in that it resultsin the introduction of black specks or blots into the stock andultimately into the paper, and accordingly one of the objects of myinvention is to prevent the introduction of these blots or specks in thefinal product.

I overcome these several disadvantages in existing structures by a formof bed plate and fastener in which wear of the fasteners andconsequexitspecking of the stock is not only eliminated, but in which provision ismade for taking care of the wear upon the bed. plate itself that thesurface of the bed plate and the fasteners therefor may be readilymaintained in coinciding planes, all in a construction of simple andpractical form and one in which the bed plate itself is firmly clampedagainst unwarranted movement.

In the accompanying specification and drawings I have shown a form of myinvention which I have found satisfactory in use and well adapted to therequirements of practical operation. Throughout the specification anddrawings like reference character are correspondingly applied "andin thedrawings: I

I I is a plan view of a heater engine bed assembly in accordance with myin vention. i

Fig. II is a side elevation thereof.

Fig. III is a section on the line III--III of Fig. I.

Figs. IV, V, and VI are plan, side and end views, respectively, of thebed plate'removed. i

Figs. VII and VIII are'deta-il views of the removable metallic fastenersfor the bed plate.

Figs. IX and X are detail views of the wooden seats for the bed plate,and

Figs. XI and XII are transverse sections particularly illustrating themanner in-which wear upon the'bedplate is taken care of.

I have indicated at 1 a trouglrlike bed 'within which is clamped the bedplate 2 of the beater engine. Such plate consists of alternate strips ofsteel 2" and wood 2 bolted together in the staggered arrangement shownin the drawings. The beater knives revolve transversely over the bedplate and work the stock againstthe corrugrated surface thus:presented'by said strips 2 and 2 I H i The bed plateQ rests upon thefloor of the bed 1 between a pair of strips 3 which fix the position ofsaid bed plate within the bed. Said strips 3 are confined between theside walls of the bed 1 and have their opposing edges shaped to conformto the staggered shape of thelbed plate. The strips 3 are'preferably ofwood so that they may be. planed off as the bed plate 2 wears down. Thefasteners for the bed plate are disposed on either side of-saidplate andare simple angle-irons having their vertical POIiElOnS 4.- disposedagainst the side walls of the bed 1 with the lower edges thereof estingupon the strips 3, and having their horizontal portions 5 disposed inthe same plane with each other and with the outerface of the bed plate2. The opposing edges of said horizontal portions 5 are shaped toconform to the staggered shape of the bed plate. If desired, a shim 6 ofproper thickness may be inserted between one of the surfaces l and theadjacent wall of the bed 1 to maintain the assembly tight.

Inasmuch as the fasteners 4: are of metal, they will not weardown underthe action 40, gmes comprlsmg a channeled bed and a bed 'of' the stockand consequently will not discolor the stock. The wear of the bed plateitself with resultant disturbance of the co- V planer disposition of theouter stu'facesof the fasteners and bed plate is taken care of by thewooden strips, which may be planed off anamount equal to the amount wornaway from the bed plate itself, and inas much as the fasteners rest uponsaid strips, their exposed surfaces are thus correspondingly loweredtOCOtIlClClG with the new level of the bed plate 1. I am thus ableatotake care ofthe wear which comes upon the bed plate'in a construction inwhich the fastenersfor the bed plate will not themselves wear down andhence will not cause discoloration of the paper: stock.

Various modifications may be made in the form and construction of mydevice without departing ffOIIltllB spirit, of-my invention if withinthe limits of the appended claims.

What Ithere-fore claim and desire to se cure by- Letters Patent is":

1.'Bed plate construction for beater engines comprising a channeled bedand a bed plate, a pair] of spaced position defining members ofreducible thickness lodged within said bed upon either side of said bedplateand defining the position of. said bed plate, and a pair ofspacedbed plate fasteners having their outer surfaces. nor

mally disposed in the plane ofthe outer surface of, the bed plateandsupported upon,

said osition definin members whereb to P ta V adjust themselves to newlevels. of-thebed plate as the thickness of said position defining,members is reduced, said fastener ofa non-wearing material so as toprevent dlscoloration of the stock. i

2. Bed plate construction for beater en plate, a pair of spaced positiondefining members lodged within said bed and between which; the bed plateis disposed, said members reducible in thickness. tocorrespond toreductions in the, effective height of the bed plate, and a pair ofspaced metallie bed plate fasteners having their outer surfaces normallydisposed in-a plane coinciding with the outer surface ofthe bed plateand supported upon said position defining members whereby to adjustthemselves to new levels of the bed plate.

3. Bed plate construction for beater engines comprising a channeled bedand a bed plate, a pa1r of spaced position defining members of reduciblethickness lodged within'said bed and between which the bed plate isdisposed, and a pair of spaced metallic fasteners. having horizontalportions normally disposed in the plane of the outer surface of said bedplate and having vertical portions supported upon the position defileing members, whereby to adjust said horizontal portions to new levels ofthe bed plate as the thickness of the position defile ing members isreduced.

Bed plate construction for beaterengines comprising a bed, a platemounted thereon, a pair of spaced wooden members of reducible thicknesswithin said bed upon either side of the bed plate and defining theposition of said bed plate, and a pair of spaced metallic fasteners, forsaid plate having (their outer surfaces disposed in the plane of theouter surface of; the. bed

plate, said fasteners, supported upon said position-defining memberswhereby to ad" just themselves to'new levels of the bed plate as the.thickness of said position defining members isreduced;

5. Bed plate constructionfor beater engines comprising a bed and a bedplate, a pair of spaced members'lodged upon said bed upon either, sideof the bed plate and defining the position of said bed plate andreducible in thickness to correspondt-o ductions in the effective heightof the bed plate, and a pairof spaced metallic fasteners forsaid bedplate having their outer surfaces normally disposed in the plane of theouter surface of the bed plate and suported u eon said aosition-defininmembers P c:

